7.3小节完成

cookbook/c07/p03_func_annotate.py

@@ -0,0 +1,14 @@
+#!/usr/bin/env python
+# -*- encoding: utf-8 -*-
+"""
+Topic: 函数注解元信息
+Desc : 
+"""
+
+def add(x:int, y:int) -> int:
+    return x + y
+
+help(add)
+
+print(add.__annotations__)
+